Charles Lindsey wrote:
> Dave Crocker <dhc(_at_)dcrocker(_dot_)net> writes:
In fact it is not unreasonable to have each bcc recipient get a copy of
the message with a bcc header that contains (only) their name in it.
In that case, it would be reasonable for an MTA to remove a Bcc header
that did not agree with the envelope address. Whether that would be
expressed as a MAY, SHOULD or MUST is another matter of course :-( .
No, this is not reasonable at all. Consider the case of a bcc recipient
whose email is forwarded. The envelope address won't agree with the bcc
header, but you still don't want the bcc header touched.
It's a simple rule: the MTA and MSA should only touch the headers their
respective protocols say they should be adding or touching. And that
list is very small.
Tony Hansen
tony(_at_)att(_dot_)com